The "middle ages" are anything between the collapse of Rome (400 AD) to its re-emergence in Rennaissance Italy (1400). Rennaissance means "rebirth". The "dark ages" are the period in the middle ages which were relatively undocumented. This would definitely include 400 AD to 700 AD, and some extend it to 900 AD.
Nicephore Niepce created the first photograph.
Interntors present an interesting kind of people who think in peculiar ways sometimes. This ability allows them to view certain situations in ways in which other people cannot. Because of this, they can think of new ways of how such situations can be tackled. This is how inventions are born. A person with an inventive mind sees a new situation where he thinks of a new solution how he could improve this situation with his invention.
This process is continued continuously with new generations of inventors seeing and coming back to old situations over and over again, inventing new things along the way.
<span>The answer is RAM. Chat messages are most likely to be found in the RAM of the computer. It is Random Access Memory. </span><span>RAM is considered volatile memory, which means that the stored information is lost when there is no more power.</span>
